Mark Reuss, 45, will become vice president of global engineering. He replaces two executives, Jim Queen and Ed Koerner, who are retiring effective October 1. Reuss is the son of former GM President Lloyd Reuss. He was just replaced in his current post as managing director of GM Holden in Australia by Alan Batey, effective September 1.
Mary Barra becomes VP of global human resources, replacing the retiring Katy Barclay. In global engineering, Eric Stevens takes Barra's job as VP of global manufacturing engineering, and John Buttermore becomes VP of manufacturing for GM International Operations. John Lauckner was named VP of global product planning. His previous post as VP of global vehicle program management is being taken by Terry Woychowski, who was chief engineer for GM's full-size pickups and SUVs.
At OnStar, Walt Dorfstatter becomes general manager; he had been the division's executive director for engineering systems and operations and replaces the retiring Chet Huber, who leaves October 1.
Inside Line says: Looks more like a face-lift than a redesign. — Laura Sky Brown, Correspondent

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